Jan 18, 2003 4:00am
Maintaining Connection to the Servers
After seeing posts about disconnections for the past few weeks now, I want to just jot down some info that I know about FTP, some questions for those that know more and some ideas I have.
As of right now, there are 14 uploaders
connected to etree05 and 317 downloaders
connected to the other 7 machines. adawg
is obviously having problems maintaining a connection. However with the numbers above, I think it's safe to say that not everyone is having these results. I, for one, don't have the same problem. Over Wednesday and Thursday I downloaded 1.4GB worth of SCI's NYE show. Speeds ranged from 7K/sec in the evening to 25 or 26K/sec while everyone slept. I only disconnected once the entire time, and it was voluntary so I could upload a track to a friend's server. The show came in at somewhere around 30-35 hours of downloading and the md5's have checked out. (I use SmartFTP in Active mode). Traffic may make a difference here, but some folks have connections that are more sensitive than others, so it can't be a universal cause to the problem - it's just a contributor.
There are lots of different ones, and many are used here. From what I know about FTP, the clients should all be using similar commands. PORT, PASV, ASCII, BINARY, LIST, STOR, RETR, CWD, REST etc...
So, for the most part, I can't see how a different FTP client may perform better than another.
In an ACTIVE environment, the server works off of ports 20 and 21. In a PASSIVE environment, the server works off of port 21 and another one over 1024 specified by the client. Could that be a factor? Has anyone had success with ACTIVE, but not PASSIVE? Maybe some clients use a higher number than others that the server doesn't like? Adawg? Which type are you using? Did you try switching?
For the most part I've been a user of SmartFTP because it's free and does the job. I just tried bulletproof's trial and am getting the same results. (been downloading for 5 minutes now at a steady 13.7K/sec without a hitch). After I try it for a few hours I'll move on the CuteFTP to see if that performs the same. I don't think that using a different client will fix anything. Can anyone else offer info on the uniqueness of different clients? Is it just the GUI or do they each use different types of communication?
What about ISP's? Maybe for one user, there is a bad link in the route between his PC and the server that's causing him to disconnect somewhere. Is this feasible?
Ok, just a start, there's gotta be an answer as to why some folks have no problems at all and others can't keep a connection for 10 minutes...
You mention that you have no problems with other servers? Which ones? Etree? Friends down the street? We need more info than "My client disconnects after 5 minutes, am I doing something wrong?"
This post was modified by bleblanc57 on 2003-01-18 12:00:13